Numerical experiments on transverse oscillations induced by normal-incident waves in a rectangular harbor of constant slope

Numerical experiments on transverse oscillations induced by normal-incident waves in a rectangular harbor of constant slope
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等坡度矩形港湾正入射波横向振荡数值试验

DOI:
10.1016/j.oceaneng.2012.09.010
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发表时间:
2013
期刊:
影响因子:
5
通讯作者:
陶爱峰
陶爱峰
中科院分区:
工程技术2区
文献类型:
--
作者:
郑金海;马平亚;张继生;陶爱峰

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在具有恒定底坡的矩形港内,可能发生横向振荡。这种波在港口的死端处具有最大振幅,并且在离岸方向上呈指数衰减。采用非线性波浪模型FUNWAVE 2.0,数值模拟了波浪垂直撞击港内时,港内产生的次谐波和同步横向振荡,当底坡较小时,次谐波振荡不明显,而同步横向振荡不明显,与底坡无关。为了检查系统的响应,横向振荡内的港口,也有一个小的底坡横跨港口进行了检查。次谐波振荡的产生似乎不受小的横向底坡的影响,但是,同步横向振荡显着增强。
In a rectangular harbor with a constant bottom slope, transverse oscillation may occur. This kind of wave has a maximum amplitude at the dead end of the harbor and decays exponentially in the offshore direction. This numerical investigation, using the nonlinear wave transformation model FUNWAVE 2.0, demonstrates the generation of subharmonic and synchronous transverse oscillations within a harbor induced by waves impacting normally on. The subharmonic transverse oscillations are trivial if the bottom slope is small, while the synchronous transverse oscillations are trivial and irrelevant for the bottom slopes. For checking the system responses, transverse oscillations within the harbor that also has a small bottom slope across the harbor were also examined. The generation of subharmonic oscillation seems not to be affected by a small transverse bottom slope; however, the synchronous transverse oscillations are enhanced significantly.
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